Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5864604 | Method of providing message service for limited access telecommunications | Alexander Poltorak | 1999-01-26 |
| 5592537 | Method of providing message service for limited access telecommunications | — | 1997-01-07 |
| 5438615 | Method of providing message service for pinless limited access telecommunications | — | 1995-08-01 |